New Delhi, May 25 -- Towards the end of the ancient Indian epic, the Mahabharata, Krishna's Yadava clan self-destructs. Many dark omens presage their downfall: nature behaves erratically and pests multiply. Sin, deception and violence proliferate, eroding trust and solidarity. Clan members humiliate and insult elders. When Krishna's extended family goes on a picnic, the men get drunk, argue and attack each other, until eventually all of them are dead.

This cautionary tale has gained new resonance as geopolitical tensions-including in South Asia-escalate and many countries embrace protectionist policies. US President Donald Trump's second administration has contributed significantly to the current fragmentation and disorder. But other wea...